Float Glass Production Line and Factory Setup

A float glass production line is an integrated industrial system designed to melt raw materials at high temperature, form molten glass into a continuous ribbon on a molten tin bath, anneal the ribbon under controlled cooling and cut it into sheets of required dimensions. The line produces high-quality flat glass with parallel surfaces and excellent optical properties.

From an industrial perspective, float glass manufacturing is important because it combines precise batch preparation, high-temperature melting (1500–1600 °C), flotation on molten tin for perfect flatness, controlled annealing to relieve internal stresses and automatic cutting. The process relies on a defined sequence of unit operations that must be correctly engineered and integrated; the complete line can reach lengths of up to 1 km.

Primary raw materials typically include silica (SiO₂ 96–98 %), sodium carbonate (Na₂CO₃), limestone (CaCO₃) and cullet for recycling. Core machinery consists of batch weighing and mixing systems, melting furnaces (capacity around 1200 tons of molten glass, length ≈150 ft / 45 m, width ≈30 ft / 9 m), tin baths, annealing lehrs, automatic cutting machines and packaging/palletizing systems.

The Industrial Department supports investors establishing a new float glass factory as well as existing plant owners requiring repair, overhaul, capacity expansion or modernization of current float lines. Projects can start from an empty site or from an operating facility that needs technical upgrading.

Whether the goal is a green-field turnkey float glass plant in Iraq, Kurdistan Region, Afghanistan or other regional markets, or the modernization of an existing line in Iran, engineering, machinery supply or manufacturing, installation, commissioning and ongoing technical support can be provided under defined contractual scopes.

Production Line Overview

The float glass production line is engineered as an integrated process system covering batch preparation, melting, flotation on molten tin, optional pyrolytic coating, annealing, cutting and packaging. Design capacity is determined during the engineering phase; typical furnace capacity is around 1200 tons of molten glass. Total line length can reach up to 1 km.

Product types include clear and coated float glass in various thicknesses and sheet sizes. The overall process flow follows a defined sequence: precise weighing and mixing of raw materials, melting in a large furnace, flotation on the tin bath to form a continuous ribbon of uniform thickness, optional coating, annealing in the lehr to relieve stresses, automatic cutting and packaging/palletizing.

Main machinery groups include batch systems, melting furnaces, tin baths, annealing lehrs, automatic cutting machines and packaging/palletizing systems. Supporting infrastructure covers electrical power, large volumes of gas, process water and specialized utilities for the tin bath and furnace.

Manpower requirements are significant (typically 30–60 persons per shift) due to the continuous nature and scale of the process. Quality control covers optical quality, thickness uniformity, residual stress and packaging integrity. Finished glass is stored under protected conditions before distribution.

Technical Specifications

The following technical data represent typical ranges for an industrial float glass production line. Final values are defined during basic and detailed engineering and may vary according to selected technology, level of automation, product portfolio and factory layout. For precise project-specific figures, contact the Industrial Department.

Specification	Description
Product	Float glass (clear and coated sheets)
Production Capacity	Furnace capacity typically around 1200 tons of molten glass (depending on project design)
Required Area	5000–15 000 m² (subject to final layout and capacity)
Electrical Power	380 V three-phase, 500–1500 kW (depending on equipment selection and automation level)
Gas	2000–5000 m³/h
Water Consumption	50–200 m³/day
Manpower	30–60 persons per shift (depending on automation level)
Main Machines	Batch weighing and mixing system, melting furnace (≈1200 t), tin bath, annealing lehr, automatic cutting machine, packaging and palletizing system
Furnace Dimensions	Length ≈150 ft (45 m), width ≈30 ft (9 m)
Total Line Length	Up to 1 km

All figures are indicative. Detailed utility balances, equipment lists and layout drawings are prepared after process definition and capacity confirmation.

Products

An industrial float glass production line can manufacture a variety of finished products depending on the selected thickness, coating and cutting configuration. Typical product families include:

Clear float glass sheets
Coated (pyrolytic) float glass
Various thicknesses and sheet sizes
Standard and custom cut formats

Variant development (thickness, coating type, sheet size) is defined during product development and process engineering according to target markets.

Raw Materials for Float Glass Factory

Raw material selection and quality control are critical for optical quality and melting behavior. The main materials used are described below.

Main Raw Materials

Silica (SiO₂ 96–98 %) – Primary glass former.
Sodium carbonate (Na₂CO₃) – Flux.
Limestone (CaCO₃) – Stabilizer.
Cullet – Recycled glass for energy and material efficiency.

Secondary / Optional Materials

Colorants
Packaging materials

Storage and handling conditions must be controlled to preserve raw-material purity and prevent contamination.

Sahi Rasa For Factories raw material

The Supply Chain Department is prepared to support identification, evaluation and supply of the main and auxiliary raw materials required by float glass factories. Depending on the contractual scope, services may include supplier identification and evaluation, procurement and purchase coordination, specification control, logistics coordination, supply-chain design for continuous production, ongoing supply arrangements, and supply of materials from Iran for projects located in regional markets.

Registering an order for raw materials for the factory Float Glass
Sahi Rasa Supply Chain Department

Raw-material supply chain support can be examined for industrial projects located in Iran, Iraq, the Kurdistan Region of Iraq (including Erbil, Sulaymaniyah, Duhok), Baghdad, Basra, Mosul, Afghanistan (Kabul, Herat, Mazar-e-Sharif), Uzbekistan, Turkmenistan, Tajikistan, Syria, Oman, Jordan, Turkey, Armenia and Georgia.

Manufacturing Process

The industrial float glass process follows a defined sequence of unit operations.

Batch Preparation – Silica, sodium carbonate, limestone and cullet are precisely weighed and mixed.
Melting – The batch is melted in a large furnace at approximately 1500–1600 °C (furnace capacity typically around 1200 tons of molten glass).
Floatation on Tin Bath – Molten glass is poured onto a bath of molten tin. Because glass is less dense than tin, it floats and spreads into a continuous ribbon of uniform thickness with perfectly parallel surfaces.
Optional Coating – Chemical (pyrolytic) coatings can be applied to the hot glass ribbon.
Annealing – The ribbon enters the annealing lehr where it is cooled gradually to relieve internal stresses.
Cutting and Packaging – Cooled glass is cut automatically to required dimensions and packaged/palletized.

Machinery & Equipment

Each main machine performs a specific function. Support is available for design, manufacturing or procurement, customization, installation, commissioning, repair, overhaul, refurbishment, automation and spare-parts supply according to the agreed project scope.

Batch Weighing and Mixing System – Prepares the raw-material mixture. Position: first stage. Importance: compositional accuracy. Quality impact: incorrect ratios affect melting and optical quality. Maintenance: weighers, mixers and conveyors. Sahi Rasa support covers design and spare parts.
Melting Furnace – Melts the batch at 1500–1600 °C (typical capacity 1200 t molten glass, dimensions ≈150 ft length × 30 ft width). Core machine of the process. Position: after batch preparation. Quality impact: temperature uniformity and atmosphere control determine glass quality. Maintenance: refractories, burners and temperature systems. Sahi Rasa provides specialized furnace support and overhaul.
Tin Bath – Forms the continuous glass ribbon by flotation on molten tin. Core machine for flatness. Position: after melting. Quality impact: tin purity and temperature control determine surface quality and thickness uniformity. Maintenance: tin management, atmosphere control and heating systems. Sahi Rasa provides specialized tin-bath support and overhaul.
Annealing Lehr – Gradually cools the glass ribbon to relieve internal stresses. Position: after the tin bath. Quality impact: residual stress control prevents breakage. Maintenance: rollers, heating/cooling zones and atmosphere control.
Automatic Cutting Machine and Packaging/Palletizing System – Cuts and packages the finished sheets. Position: end of line. Quality impact: dimensional accuracy and edge quality. Maintenance: cutting tools, conveyors and packaging systems.

Factory Layout & Building Requirements

Typical functional areas include raw-material storage and batch house, melting furnace hall, tin-bath and annealing area, cutting and packaging, finished-goods warehouse, quality-control laboratory, extensive utility rooms (gas, cooling water, specialized atmospheres), maintenance workshop, staff facilities and loading docks. Layout must accommodate the continuous linear nature of the process (line length up to 1 km) and strict environmental and safety requirements. Exact area allocation is determined during the engineering phase according to capacity and product range.

Utilities

Electricity: 380 V three-phase, typically 500–1500 kW
Gas: 2000–5000 m³/h
Water: 50–200 m³/day
Specialized utilities for tin bath atmosphere and furnace
HVAC, dust extraction and drainage according to hygiene, environmental and local regulations

Turnkey Factory Setup

An investor can start from an empty site. Depending on contractual scope, the project can be accompanied through: Idea → Feasibility → Engineering → Factory Design → Machinery → Procurement → Manufacturing → Installation → Commissioning → Training → Raw Material Supply → Packaging → Trial Production → Commercial Production. The objective is an operational factory ready for production.

EPC & PMC

Projects can be executed under EPC (Engineering, Procurement, Construction) or PMC (Project Management Consultancy) approaches. Engineering, machinery supply or manufacturing, installation supervision and commissioning are coordinated within the defined contract boundaries.

Machinery Repair

Existing float glass factories can request inspection, troubleshooting, mechanical and electrical repair, component replacement, spare-parts supply and line maintenance support for furnaces, tin baths, lehrs, cutting machines and related systems.

Machinery Overhaul & Refurbishment

Older equipment can be evaluated for comprehensive overhaul, refractory replacement, control-system upgrades, improved reliability and modest capacity or quality improvements where technically feasible.

Capacity Expansion

Capacity of an existing line can often be increased by addressing bottlenecks, upgrading key sections (furnace, tin bath, cutting), improving material handling or introducing selective automation, subject to the continuous nature of the process.

Industrial Automation

Typical applications include advanced process control of furnace temperature and atmosphere, tin-bath parameters, annealing profile, automatic cutting optimization, HMI, data logging and SCADA integration.

Supply Chain

Factory = Machinery + Raw Materials + Utilities + People + Process + Supply Chain + Market. The Supply Chain Department supports supplier sourcing, procurement, logistics and ongoing material supply for float glass projects.

Packaging

Sheet packaging, edge protection, palletizing and secondary packaging are integrated according to product format and market requirements.

Branding & Product Development

When required, support can be provided for product development, packaging design, graphic design, industrial design, branding and related marketing preparation.

Market & Country Sections

Engineering, machinery, installation, overhaul and supply-chain support are available for float glass projects in Iran, Iraq, Kurdistan Region (Erbil, Sulaymaniyah, Duhok), Baghdad, Basra, Mosul, Afghanistan (Kabul, Herat, Mazar-e-Sharif), Uzbekistan, Turkmenistan, Tajikistan, Syria, Oman, Jordan, Turkey, Armenia and Georgia.

Sahi Rasa Services

Service	Application in This Project
Feasibility Study	Technical and economic assessment of capacity, product mix and investment
Factory Design	Layout, process flow and utility design
Machinery Design / Manufacturing	Specification and coordinated supply or manufacturing of process equipment
Procurement	Sourcing of machinery, components and materials
Installation & Commissioning	Mechanical/electrical installation, start-up and performance testing
Automation	PLC, HMI, process control and optional SCADA
Raw Material Supply	Coordination via Supply Chain Department
Repair / Overhaul / Refurbishment	Restoration and modernization of existing machinery
Capacity Expansion	Engineering and implementation of throughput increases
Staff Training	Operational and basic maintenance training

Why Sahi Rasa

Process engineering, machinery-related capabilities, procurement support, supply-chain coordination, installation, commissioning, training, maintenance support and automation are combined. The practical advantage is a more integrated execution path from concept to an operating production line.

From Empty Land to Production

Typical sequence: Feasibility → Engineering → Factory Design → Equipment Design → Machinery Manufacturing/Procurement → Logistics → Installation → Commissioning → Staff Training → Raw Material Supply → Trial Production → Commercial Production. Operational support for a defined initial period can be examined as a contractual option.

Who Should Contact Sahi Rasa?

Investors – planning a new float glass factory or production line
Existing Factory Owners – needing repair, overhaul, refurbishment, modernization, automation or capacity expansion
Industrial Buyers – requiring machinery, spare parts, raw materials or engineering services

Final CTA

If you intend to set up a float glass production line or factory, if your existing plant needs repair, overhaul or capacity expansion, if you require new machinery or automation, or if you need coordination of raw-material supply, contact the Industrial Department.

Submit your request for: Factory Setup / Machinery / Repair / Overhaul / Refurbishment / Automation / Capacity Expansion / Raw Materials.

Registering an order for raw materials for the factory Float Glass

FAQ

What is the typical cost of setting up a float glass factory?
Cost depends on capacity, product range, automation level, building and utility scope. A detailed estimate is prepared after process definition.
Which main machines are required?
Batch weighing and mixing system, melting furnace, tin bath, annealing lehr, automatic cutting machine and packaging/palletizing system.
What production capacity can be designed?
Typical furnace capacity around 1200 tons of molten glass; determined during the engineering phase.
How much space is needed?
Typical process area ranges from approximately 5000 to 15 000 m²; total line length can reach up to 1 km.
What are the main raw materials?
Silica, sodium carbonate, limestone, cullet and packaging materials.
Can raw materials be supplied?
Yes, via the Supply Chain Department according to project scope.
Is machinery manufacturing or procurement supported?
Design, manufacturing or coordinated procurement according to the agreed scope.
Can existing machines be repaired?
Yes – inspection, troubleshooting, mechanical/electrical repair and spare parts.
Is overhaul or refurbishment possible?
Yes – comprehensive restoration and control upgrades.
Can capacity of an existing line be increased?
Often yes, by addressing bottlenecks and upgrading key sections, subject to the continuous nature of the process.
Are turnkey projects executed?
Turnkey or partial turnkey scopes can be offered under defined contracts.
Are services available in Iraq and Kurdistan Region?
Yes, including Erbil, Sulaymaniyah, Duhok and other locations.
Are services available in Afghanistan?
Yes, including Kabul, Herat and Mazar-e-Sharif.
Can raw materials be supplied from Iran for regional projects?
Yes, coordination of material supply is part of possible supply-chain scope.
Is installation and commissioning included?
They can be included according to the selected contractual package.